CVE-2025-5520

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Source

https://cve.org/CVERecord?id=CVE-2025-5520

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-5520.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2025-5520

Published

2025-06-03T18:00:22Z

Modified

2026-08-12T15:16:43Z

Severity

6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator

Summary

Open5GS AMF/MME emm_state_authentication assertion

Details

A vulnerability was found in Open5GS up to 2.7.3. It has been classified as problematic. Affected is the function gmm_state_authentication/emm_state_authentication of the component AMF/MME. The manipulation leads to reachable assertion. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 9f5d133657850e6167231527514ee1364d37a884. It is recommended to apply a patch to fix this issue. This is a different issue than CVE-2025-1893.

Database specific

{
    "cna_assigner":  "VulDB",
    "cwe_ids":  [
        "CWE-617"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/5xxx/CVE-2025-5520.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "2.7.3"
                },
                {
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                }
            ],
            "source":  "AFFECTED_FIELD"
        }
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}

References

Affected packages

Git / github.com/open5gs/open5gs

Affected ranges

Type

GIT

Repo

https://github.com/open5gs/open5gs

Events

Introduced

83e35bb2de7e67646fdba849580184422b10006a

Fixed

9f5d133657850e6167231527514ee1364d37a884

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "2.7.0"
        },
        {
            "last_affected":  "2.7.0"
        },
        {
            "introduced":  "2.7.1"
        },
        {
            "last_affected":  "2.7.1"
        },
        {
            "introduced":  "2.7.2"
        },
        {
            "last_affected":  "2.7.2"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

2.*

2.7.0

2.7.1

2.7.2

v2.*

v2.7.0

v2.7.1

v2.7.2

v2.7.5

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-5520.json"

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vanir_signatures_modified

"2026-08-12T15:16:43Z"